linux-kernel - [PATCH] proc: kcore: using strlcpy instead of strncpy

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Date:	Thu, 20 Jun 2013 19:01:42 +0800
From:	Zhao Hongjiang <zhaohongjiang@...wei.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	<dhowells@...hat.com>, <ralf@...ux-mips.org>, <dhillf@...il.com>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH] proc: kcore: using strlcpy instead of strncpy

for NUL terminated string, need alway set '\0' in the end.

Signed-off-by: Zhao Hongjiang <zhaohongjiang@...wei.com>
---
 fs/proc/kcore.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 0a22194..06ea155 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -408,7 +408,7 @@ static void elf_kcore_store_hdr(char *bufp, int nphdr, int dataoff)
 	prpsinfo.pr_zomb	= 0;
 
 	strcpy(prpsinfo.pr_fname, "vmlinux");
-	strncpy(prpsinfo.pr_psargs, saved_command_line, ELF_PRARGSZ);
+	strlcpy(prpsinfo.pr_psargs, saved_command_line, sizeof(prpsinfo.pr_psargs));
 
 	nhdr->p_filesz	+= notesize(&notes[1]);
 	bufp = storenote(&notes[1], bufp);
-- 
1.7.1

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